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Biomedical subjects

C Alfano

Publications and source records attributed to C Alfano.

29 records · Page 2Linked to original sources
PubMed1976

Drug induction and experimental cholestasis.

The occlusion of bile duct reduced the microsomal cytochrome P-450 activity in the liver of rats. However, the effects of the inducer drug, phenobarbital, were not abolished.

Alanine Transaminase↗
PubMedDate not supplied

Cryotherapy in the treatment of keloids.

BACKGROUND: Despite their benign nature, keloids may constitute a severe aesthetic and, in some cases, functional problem with important repercussions on patients' quality of life. There is no consensus on keloid treatment and no wholly satisfactory therapy has yet emerged. OBJECTIVE: To assess the efficacy of cryotherapy in the treatment of keloids. METHODS: 135 patients with 166 keloids received cryosurgical treatment between 1990 and 2004. Freeze times and number of sessions varied. Scar volume was measured before and after treatment. Median follow-up was 48.6 months (range 12.4-72.6 months). RESULTS: Of the 166 lesions treated, 79.5% responded very well with a volume reduction of the initial mass of greater than 80% after a median of 3 treatments (range: 1-9). A good result was obtained in 14.5% of lesions, while results were unsatisfactory in 6% of cases. The main adverse effects reported were atrophic depressed scars and residual hypopigmentation (75% of cases). No recurrences arose during the follow-up period (12-72 months). CONCLUSIONS: To date, cryotherapy appears to be the most effective, safe, economic, and easy-to-perform monotherapy to treat keloid lesions and hypertrophic scars.

Adolescent↗
PubMedDate not supplied

Characteristics of insulin resistance in Turner syndrome.

The characteristics of insulin resistance, in Turner syndrome are still unclear. For this purpose in 4 patients with Turner syndrome and in 8 control females we performed an euglycaemic hyperinsulinemic glucose clamp at the following insulin infusion rates (50 and 100 mU/Kg x h), each period lasting 120 min. A simultaneous infusion of D-3-H-glucose allowed us to determine in basal conditions and during the clamp hepatic glucose output and glucose disappearance rate (Rd). In basal conditions plasma glucose (4.8 +/- 0.1 vs 4.6 +/- 0.2 mmol/1 p = NS) and plasma glucagon (102 +/- 7.5 vs 112 +/- 11.3 ng/l p = NS) were similar in both groups despite higher plasma insulin (19 +/- 1.8 vs 7 +/- 2.2 mU/l p less than 0.05) and C-peptide (1.0 less than 0.1 vs 0.8 +/- 0.06 pmol/l p less than 0.05) levels in patients with Turner syndrome. In the last 60 min of the lower insulin infusion rate glucose infusion rate (4.1 +/- 0.3 vs 2.9 +/- 0.4 mg/Kg x min p less than 0.05) and glucose disappearance rate (3.89 +/- 0.12 vs 2.63 +/- 0.11 mg/Kg x min p less than 0.01) were significantly reduced in patients with Turner. On the contrary hepatic glucose output was similarly suppressed in both groups of subjects. Doubling the insulin infusion rate, we obtained similar results in patients and controls respectively. So we conclude that in Turner syndrome the insulin resistance state is mainly due to a muscular receptor defect.

Adolescent↗